Foreign agents, engineering a mysterious operation in the frozen regions of Canada are the subject of a widespread search by the Canadian Mounted Police. The search is spearheaded by Mounties Sergeant Don Roberts (BILL HENRY) who is aided by Kay Conway (SUSAN MORROW), an undercover agent for the Canadian government. The foreign agents, headed by Marlof (ARTHUR SPACE), who masquerades as an old trapper, Smoky Joe; makes plans for the building of rocket launching platforms from which his county can bombard American and Canadian cities with atomic guided missiles preparatory to invasion. The treacherous terrain of the frozen North provides an exciting location for espionage and sabotage. Harrowing chases by horseback, car, boat and dogsled across brutal mountainscapes, dangerous gorges and bottomless lakes provide thrill after thrill through 12 atomically-charged episodes!! This 1953 12-chapter black-and-white serial was produced and directed by Franklin Adreon, and runs approximately 169 minutes. It is regions-free, all-ages and digitally remastered in NTSC format, and offered here on two DVD-R discs that should play on any standard DVD player.